Cannot adjust the brightness after display driver update on Satellite L855-118

Hello.

I just bought a SATELLITE L855-118, with ATI graphics card today, it was between this and another of them, but I know that you have problems updating graphics drivers on a portable Sony.

I did a restore point.

So I uninstalled the ATI catalyst graphics card and then did a sweeper driver and rebooted and then installed catalyst 12.6, installed fine, but my screen went to the maximum brightness and I can't adjust, BRIGHTNESS osd is displayed but the brightness of the screen does not change.

So I used my restore point.

This time I crushed the catalyst 8.9 with 12.6 stock, still cannot adjust the brightness.

Someone knows how to solve this problem.

My spec full in the link below.

Satellite L855-118 - product specifications - Toshiba

Thank you

John.

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You mean that you can not use the Fn or Fn + F6, F7 button combination?
Do other combination works properly?

Also check this doc:
http://APS2.toshiba-tro.de/KB0/TSB11033A0000R01.htm

There is a brightness.zip that installs the additional registry key

Tags: Toshiba

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